diff --git a/qt/draw_widget.cpp b/qt/draw_widget.cpp
index e712ade663..302af78961 100644
--- a/qt/draw_widget.cpp
+++ b/qt/draw_widget.cpp
@@ -218,7 +218,7 @@ namespace qt
       yg::ResourceManager::Params rmParams;
       rmParams.m_rtFormat = yg::Data8Bpp;
       rmParams.m_texFormat = yg::Data8Bpp;
-      rmParams.m_texRtFormat = yg::Data8Bpp;
+      rmParams.m_texRtFormat = yg::Data4Bpp;
       rmParams.m_videoMemoryLimit = GetPlatform().VideoMemoryLimit();
 
       try